Comparison of data on the CIRB intensity at long wavelengths and our best-fit model predictions (thick line). Most of the data are as reported and discussed in AF2008. The cyan arrowheads mark the fraction of the CIRB intensity resolved into sources by Herschel PACS (Berta et al. 2010, 2011) at 100 and 160 μm, a fraction corresponding to roughly half of the COBE intensity at these peak wavelengths. Red arrowheads at longer wavelengths mark the CIRB resolved fractions with Herschel SPIRE (Oliver et al. 2010; Glenn et al. 2010). The three upper blue datapoints in the far-IR are from Hauser et al. (1998), the three lower (red) ones are from a re-analysis of the DIRBE data from the all-sky COBE maps by Lagache et al. (1999), the shaded areas from Fixsen et al. (1998, black shade) and Lagache et al. (2004, red shade). The three black asterisks at 70, 100, and 160 μm are the background intensities from PACS resolved sources and from a background fluctuation analysis by Berta et al. (2011). The green data point comes from a background estimate from a MIPS deep survey by Frayer et al. (2006, 2009).